Windshield wiper



FIG. 1 is a top plan view of a windshield wiper showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a front plan view thereof;

FIG. 4 is a rear plan view thereof;

FIG. 5 is the opposite side view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a windshield wiper, as shown. 